EP0881979A1 - Profile d'etancon de chaine - Google Patents

Profile d'etancon de chaine

Info

Publication number
EP0881979A1
EP0881979A1 EP96942372A EP96942372A EP0881979A1 EP 0881979 A1 EP0881979 A1 EP 0881979A1 EP 96942372 A EP96942372 A EP 96942372A EP 96942372 A EP96942372 A EP 96942372A EP 0881979 A1 EP0881979 A1 EP 0881979A1
Authority
EP
European Patent Office
Prior art keywords
web
chain
profile according
chain web
legs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP96942372A
Other languages
German (de)
English (en)
Inventor
Helmut Kanzler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kassbohrer Gelandefahrzeug AG
Kaessbohrer Gelaendefahrzeug AG
Original Assignee
Kassbohrer Gelandefahrzeug AG
Kaessbohrer Gelaendefahrzeug AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kassbohrer Gelandefahrzeug AG, Kaessbohrer Gelaendefahrzeug AG filed Critical Kassbohrer Gelandefahrzeug AG
Publication of EP0881979A1 publication Critical patent/EP0881979A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/18—Tracks
    • B62D55/26—Ground engaging parts or elements

Definitions

  • the invention relates to a chain web profile for crawler tracks of caterpillar vehicles, in particular those for the maintenance of ski slopes, with a web body which has an essentially U-shaped base in cross section with two U legs and at least one connecting web arranged in between, the U - Legs run towards each other and end in an end piece of the web body.
  • Such a chain web profile is known from DE-GM 90 06 183.
  • the chain web profile runs transversely to crawler tracks of the crawler vehicle and projects from them essentially vertically.
  • the chain web profile is detachably connected to individual chain bands forming the crawlers, for example by screwing.
  • Such a caterpillar vehicle can be used in summer for agriculture and forestry and in winter for the maintenance of slopes and cross-country trails.
  • the chain web profile serves as a locomotion aid in rough and snow-covered areas of application.
  • the invention is therefore based on the object of improving a chain web profile of the type mentioned at the outset in such a way that, while maintaining the high load-bearing capacity and high moments of resistance of the chain web profile, its weight per unit length is reduced and the material expenditure is thus reduced.
  • This object is achieved in a chain web profile with the features of the preamble of claim 1 in that a support web is arranged in the manner of a truss between each U-leg and the connecting web.
  • the chain web profile also has a high load-bearing capacity and correspondingly high resistance moments with respect to the bending stresses that occur.
  • the stiffening and reinforcement of the chain web profile by the support webs can reduce the thickness or material thickness of the connecting web, U-legs and overall the U-shaped base. Due to the arrangement of the support webs, the chain web profile is constructed in the manner of a truss in cross section, a honeycomb structure being formed by the corresponding cavities within the chain web profile.
  • This truss structure or the honeycomb structure while simultaneously reducing the weight, maintains a high load-bearing capacity with high moments of resistance of the chain web profile.
  • each support web extends obliquely upwards from a substantially vertical section of the U-leg at an acute angle in the direction of the opposite U-leg. This alignment of the connecting web results in high moments of resistance.
  • acute angles between 30 ° and 60 °, preferably between 40 ° and 50 ° have proven to be particularly advantageous, with the same acute angles being preferred in both support webs for the resiliently large resilience of the chain web profile.
  • An acute angle is particularly preferably essentially equal to 45 °.
  • the support webs are connected to a corresponding point on the connecting web. To simplify the manufacture and to increase the resilience of the chain link profile in the vertical direction, it is advantageous for the support webs to converge in their connection point to the connecting web.
  • the production of the chain web profile is further facilitated in that it has an axially symmetrical cross-section with respect to a vertical longitudinal axis of the profile.
  • Such a symmetrical cross-section also provides an equally high load-bearing capacity of the chain web profile, regardless of the direction of travel of the crawler vehicle.
  • the U-legs run above one another in inclined sections above the support webs and meet to form the end piece. This results in a profile which is relatively slim in cross-section and which, for example, can penetrate well into a soft surface.
  • the U-legs run essentially parallel to one another and vertically up to the connecting web. Corresponding inclined sections are only formed between the connecting web and the end piece in this case.
  • the inclined sections of the U-legs which are already curved above the support webs, it has further proven to be advantageous if the inclined sections have a curved shape th course have a turning point at which the curvature changes from convex to concave.
  • the connecting web runs essentially perpendicular to the longitudinal axis of the profile and parallel to the U-web.
  • the connecting web is V-shaped and the supporting webs are connected to the V tip thereof.
  • the corresponding V-legs are optionally arranged in an extension and collinear to the corresponding support web.
  • transverse web runs between the U-legs between the connecting web and the end piece.
  • Such a transverse web can also be arranged between the connecting web and the U-web between the U-legs.
  • the transverse web runs essentially parallel to the connecting web, further cavities of the honeycomb structure of the chain web profile being formed.
  • a further exemplary embodiment has a transverse web which is reversely V-shaped, the V tip lying on the longitudinal axis of the profile. This also results in, in particular, relatively high moments of resistance when the chain web profile is stressed by bending moment essentially perpendicular to the longitudinal axis of the profile.
  • the width behaves the chain web profile at the free end of the end piece to the width of the U-web as 1: 6 to 1:12, preferably 1: 7 to 1:10.
  • the end piece When using the chain web profile, the end piece in particular, and the free end thereof, is heavily stressed and is correspondingly quickly worn out.
  • the end piece has a reinforcing attachment at its free end.
  • this can be designed as an attachment profile which can be screwed to the end piece of the chain web profile.
  • the reinforcing attachment has a slide at its lower end, which is slidably mounted in a slide rail in the end piece.
  • the reinforcement attachment can be inserted into the chain web profile from a lateral end thereof and held there in a form-fitting manner.
  • it can be secured against displacement at the lateral ends of the chain web profile.
  • the slider is reversely T-shaped, the slide rail being complementary.
  • the chain link profile is preferably made of soft metal, such as an aluminum alloy or a plastic.
  • the chain link profile can be made by extrusion or other known manufacturing processes.
  • FIG. 3 shows a cross section through a third exemplary embodiment
  • FIG. 5 shows a cross section through a fifth exemplary embodiment.
  • FIG. 1 shows a cross section through a first embodiment of a chain web profile 1. This is formed by a U-shaped base 3 with a U web 6 and two U legs 4 and 5.
  • the U-legs 4, 5 have adjacent to the U-web 6 substantially vertical and parallel to a longitudinal axis 16 vertical sections 11, 12 and adjoining sloping sections 17, 18.
  • the inclined sections 17, 18 converge towards one another and form an end piece 8.
  • the end piece 8 has approximately twice the material thickness or width as the U-webs 4, 5.
  • the U-web 6 runs perpendicular to the longitudinal axis 16 of the profile and is detachably fastened, for example, by screwing to a treadmill (not shown) of a crawler belt of a caterpillar vehicle.
  • the vertical sections 11, 12 extend up to support webs 9, 10. These are within the profile of the U-legs at an acute angle 13, 14 obliquely upwards in the direction of the other U-leg.
  • the support webs 9, 10 each enclose an equal acute angle 13, 14 with the U-legs and run towards one another, wherein they are located in a connection point 15 on the Pro
  • the connecting web 7 runs between the inclined sections 17, 18 of the U-legs 4, 5 perpendicular to the longitudinal axis 16 of the profile and parallel to the U-web 6.
  • a crosspiece 21 is arranged between the U-legs 4, 5. This runs parallel to the connecting web 7.
  • Different cavities 30, 31, 32, 33 and 34 are formed between the webs and legs of the chain web profile 1.
  • the lower base cavity 30 has an approximately house-shaped cross section.
  • the side cavities 31 and 32 between the support webs 9, 10, the connecting web 7 and the U-legs 4, 5 are essentially triangular in cross section.
  • a trapezoidal cavity 33 is formed between the connecting web and the transverse web and the U-legs 4, 5 and an approximately triangular tip cavity 34 is formed between the transverse web 21 and the end piece 8.
  • the chain web profile 1 is axially symmetrical to the longitudinal axis 16 of the profile.
  • a width 23 at the free En de 24 of the end piece 8 is smaller in comparison to a width 25 of the chain web profile 1 in the region of the U-web 6, the ratio of width 23 to width 25 being approximately between 1: 7 and 1: 8 in the illustrated embodiment.
  • FIG. 2 shows a second exemplary embodiment of a chain web profile 1, which is very similar to the chain web profile according to FIG. 1.
  • the tip cavity 34 is also triangular, but in comparison to the tip cavity according to FIG. 1 it is extended towards the end piece 8.
  • the U-legs 4, 5 have a lower material thickness, although the end pieces 8 in FIGS. 1 and 2 are designed with the same width or material thickness.
  • the chain link profile 1 according to FIG. 2 has a slightly lower weight per unit length than the chain link profile 1 according to FIG. 1.
  • the vertical sections 11, 12 extend as far as the connecting web 7.
  • the adjoining oblique sections 17, 18 run in a straight line and meet to form the end piece 8.
  • the chain web profile 1 according to FIG. 3 is also axially symmetrical to the longitudinal axis 16 of the profile.
  • the support webs 9 and 10 according to FIG. 3 almost only meet in the connecting web 7 each other, so that the connection point 15 is essentially formed in the connecting web 7.
  • the transverse web 21 has a reverse V-shape, its V tip 22 pointing in the direction of the end piece 8 and being arranged on the longitudinal axis 16 of the profile.
  • the connecting web 7 is V-shaped, its V tip 20 being designed as a connecting point 15 for the supporting webs 9 and 10.
  • the corresponding V-legs of the connecting web 7 extend
  • the corresponding side cavities 31, 32, cavity 35 and tip cavity 34 have different cross sections compared to the previous exemplary embodiments.
  • the cavity 35 is essentially rhombus-shaped and the tip cavity 34 is essentially arrowhead-shaped.
  • the inclined sections of the U-legs 4, 5 have turning points 19 approximately in the area where the connecting web 7 is connected to the inclined sections 17, 18.
  • a reinforcing attachment 26 is arranged on the end piece 8.
  • This essentially has a frustoconical cross section, from the underside 28 of which an inverted T-shaped slider 28 projects.
  • This is slidably mounted in a complementarily shaped slide rail 29 within the end piece 8.
  • the slide rail 29 has an opening in the direction of the tip cavity 34 on its underside.
  • the reinforcement attachment 26 can extend over the entire length of the chain web profile 1.
  • FIGS. 1 to 5 have an axisymmetric cross section. It goes without saying that all of the above statements regarding the stiffening framework or the honeycomb structure thereby obtained also apply to chain web profiles that are asymmetrical relative to the longitudinal axis of the profile and that corresponding support webs, cross webs etc. can also be used with such an asymmetrical profile.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Vehicle Body Suspensions (AREA)
  • Prostheses (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Passenger Equipment (AREA)

Abstract

L'invention concerne un profilé d'étançon de chaîne (1) pour chenilles de véhicules chenillés, notamment pour l'entretien des pistes. Ce profilé comporte un corps d'étançon (2) qui présente en section une base (3) sensiblement en forme de U avec deux branches (4, 5) reliées par au moins une partie jointive (7). Ces branches (4, 5) s'étendent pour se réunir en une pièce finale (8) du corps d'étançon (2). Pour réduire le poids du profilé d'étançon (1) par unité de longueur tout en conservant une haute capacité de charge et des couples de résistance élevés, et donc pour utiliser moins de matière, une traverse de support (9, 10) est disposée entre chaque branche (4, 5) et la partie jointive (7) de manière à former un treillis.
EP96942372A 1996-02-20 1996-12-06 Profile d'etancon de chaine Ceased EP0881979A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29602940U 1996-02-20
DE29602940U DE29602940U1 (de) 1996-02-20 1996-02-20 Kettenstegprofil
PCT/EP1996/005474 WO1997030883A1 (fr) 1996-02-20 1996-12-06 Profile d'etancon de chaine

Publications (1)

Publication Number Publication Date
EP0881979A1 true EP0881979A1 (fr) 1998-12-09

Family

ID=8019732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96942372A Ceased EP0881979A1 (fr) 1996-02-20 1996-12-06 Profile d'etancon de chaine

Country Status (6)

Country Link
EP (1) EP0881979A1 (fr)
JP (1) JPH11504884A (fr)
CA (1) CA2245552A1 (fr)
DE (1) DE29602940U1 (fr)
NO (1) NO983837L (fr)
WO (1) WO1997030883A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19755581A1 (de) * 1997-12-13 1999-06-17 Hans Hall Raupensteg für Laufketten von Raupenfahrzeugen, insbesondere für Pisten- oder Loipenspurgeräte
DE10303485B4 (de) * 2003-01-24 2010-05-27 Kässbohrer Geländefahrzeug AG Kettensteg für eine Laufkette eines Kettenfahrzeugs
US8672424B2 (en) 2010-10-28 2014-03-18 Tucker Sno-Cat Corporation Vehicle track with improved performance
DE102015206775A1 (de) * 2015-04-15 2016-10-20 Kässbohrer Geländefahrzeug AG Kettensteganordnung einer Laufwerkskette einer Pistenraupe, Verfahren zur Herstellung eines Kettenstegprofils für eine derartige Kettensteganordnung und Laufwerkskette für eine Pistenraupe
DE102019220532A1 (de) * 2019-12-23 2021-06-24 Kässbohrer Geländefahrzeug Aktiengesellschaft Kettensteg für ein Kettenfahrzeug und Verfahren zur Herstellung eines solchen Kettensteges

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT327705B (de) * 1971-11-12 1976-02-10 Schreiner Joachim Bewehrung eines gummilaufbandes fur raupenfahrzeuge
DE9303466U1 (de) * 1993-03-09 1994-07-14 Hoogovens Aluminium Profiltechnik GmbH, 56070 Koblenz Kettenelement
DE29504677U1 (de) * 1995-03-18 1995-06-01 Hans Hall GmbH, 88250 Weingarten Raupensteg für Ketten von Pistenfahrzeugen oder Loipenspurgeräten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9730883A1 *

Also Published As

Publication number Publication date
CA2245552A1 (fr) 1997-08-28
NO983837D0 (no) 1998-08-20
NO983837L (no) 1998-08-20
WO1997030883A1 (fr) 1997-08-28
DE29602940U1 (de) 1997-06-19
JPH11504884A (ja) 1999-05-11

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